Draft rigging



March 31. 1925. 1,532,026

D. s. BARRows Y DRAFT RIGGING Filed June 28, 1924 2 Sheets-Sheet l Qi? @m@ /Cfcja aftotncq A March 3l. 1925. 1,532,026

` D. s.v BARRows DRAFT RIGGING Filed `June 28, 1924 2 Sheets-Sheet 2 lll/Jim" Patented Mar. 3l', 1925.

UNITED VSTATES 1,532,026 PATENT OFFICE.

DONALD S. BARROWS, F ROCHESTER, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE SYMINGTON COMPANY, A CORPORATION 0F IIILARYILAND.l

DRAFT RIGGING.

Application f led June 28, 1924. Serial No. 722,919.

'To all whom it may Gomera.'

Be it knownthat I, DoNAm S. BARi'zoWs,

a citizen of the United States, residing at Rochester, in the vcounty of.Monroe and State of New York, have invented certain new and useful Improvements in Draft Rigging; and I do hereby declare the foly lowing to be affull, clear, and exact descripgenerally considered, is to provide a cheek casting with means for compensating for wear so that travel of the cushionlng elements of the draft rigging may be always maintained constant.

, Still another object of the invention is to casting having a key receiving slot thereln with means adapted t0 contactl the key to limit the movement thereof, said means being iemov!` able to permit of alteration in key travel or to compensate for wear in the cushioning elements.

To these and other ends, the invention comprises the various elements and combinations of elements as will hereinafter be more fully pointed out.

be received in a slot in the coupler, alined slots in the adjacent portions of the yoke,

and the ends ofthe key extending within slots formed in the' sills, which latter slotsI are generally reinforcedfby metallic elements'surrounding the same, called cheek plates or stop castings. The slots in the sills\ are elongated so that on draft and buiing movements of the coupler the key is moved within the sill slots and the length 'of the sill slots is adjusted so that under buiing movements they key engages the rear end of the slots in tli'e'fsills coincident with' `the closing of the cushioning unit. The

purpose of this construction is to distribute excessive loads above the capacity of thel cushioning' element or unit to a plurality of spaced points on the sills, some of which are preferably in line with the webs thereof.; In service, however, the rear ends of the key slots .in the sills or the adjacent edges of the key are often worn so that the entire load beyond the capacity of the A cushioning unit is delivered directly to the same and not divided as above described,

with the result that the cushioning unit is often seriously damaged.

In addition, all cushioning units do not have the same travel from open to closed position. In fact, cushioning units vary from one and three-quarter inches to three inches and consequently key slots whichprovide a three inch movement of the coupler keycannot afford any protection to a cushioning unit having less than three inches of closing movement, and it is to overcome these diiiculties that the present invention was designed.

Referringnow to the drawings:

Figure 1 is a view partially in plan and partially in section of a portion of a draft rigging of the well known Farlow two-key type. i

Figure 2 is a side elevation of a sill showing a cheek casting applied thereof.

Figure 3 is a corresponding view but showing the exterior of the sill.

Figure 4 is a cross section on the line 4--4 of Figure 3, the direction of view being indicated by the arrows adjacent the ends of the section line.

Figure 5 -is a section taken on the line 5 5 of Figure 3.

Figure 6 is a fragmentary sectional/'view sol lil)

taken on the line 6-6 of Figure 5, the direction of ,View being. indicated by the. arrows adjacent the ends of the section line.

The numeral 1 designates the center sills of a car to which are secured, by rivets or other suitablemeans, cheek plates or stop castings 2.. 3 is lthe coupler, It the yoke, 5 a front follower, and 6 and 7, respectively," the coupler and follower keys. All of the parts, with the exception of the cheek -plates 2 vas will be hereinafter pointed out,are

old and well known and their operation-` is so well understood that :it is unnecessary to further describe the same. fr

The cheek plates 2 are each provided with a plurality of longitudinally extending slots 8 and 9 in which are respectively received the keys 6 and 7. .The slot 8 is elongated and extends on opposite4 sides of the key 6 so that the coupler key may move forwardly and rearwardly as necessary. The Slot 9 is extended rearwardly of the key 7 in the normal position of the latter and the said of the key 7 so that in reality the slot 9 is.

of slightly less length than the slot 8 measured in both instances from the rear edge of the adjacent key. y

In order to provide for cushioning units of dierent closing movements and to compensate for wear, the portions which close the rear ends of the slots 8 and 9 are se arable from the stop castings and are pre er-l ably formed as T-shaped members 14. Since the members 14 and the means by which these members are connected to the cheek plates is substantially identical, a description of one will suffice. At the rear edge of the slot 8 I provide a recess 15 which extends longitudinally of the cheek casting but is of less length than the bridge 16 which separates the front and rear slots. The slot 15 is intersected by -an opening 17 through which a fastenin means or rivet 18 may extend. Preferab the side walls of the bridge 16 are provided with countersunk faces 19 to receivethe head. of the rivet or fastening means 18. The members 14 are adapted to engage the adjacent portion of the bridge 16 on opposite sides of the slot 15, as most clearly shown in Figures 1 and 5 of the drawings.

From the foregoing description it will be readily seen that the travel of the key or keys under buing movements may be ar-c ranged to suit any type of cushioning unit by connecting to the cheek plate 2 a member 14 having the desired thickness, and that if the members 14 become Worn due to the excessive buing shocks, by substituting another ,memberor members of suitable thickness the travel of the key or keys may be yf vantageously utilized in combination with e key construction and that if desired, y

a sin the pgarts 14 may be utilized at both ends of lthe slots so as to positively control the movement of fthe coupler under draft as Well as buing.

Having now described my invention, what I claim as new and desire to secure by Letters Patent, is: i

1. In a draft rigging, the combination with slotted sills, of slo ted cheek plates connected thereto, a key extending within said slots, and detachable means extending within said slots for limiting the movement of said key in one direction.

2. In a draft rigging, the combination with slotted sills, of Slotted cheek plates connected thereto. a yoke, a key for connecting said yoke and sills, and removable means engageable with the end portions of .said key for limiting the movement thereof in one direction.

` (3. In a draft rigging, the combination with slotted sills, of slotted cheek plates connected thereto, a slotted yoke, a key extending through said slots in said yoke for operatively connectin the same to said sills, and means positione in said cheek plate slots for limiting the movement of said key in one direction.

4. In a draft rig ing, the combination with slotted sills, o slotted cheek plates connected thereto, a key extending through said slots and adapted to operatively connect to said cheek plates a movable member of said draft rigging, said cheek plates being provided with means for engaging removable members, and removable members cooperating with said cheek plates, said last named members being adapted to limit the movement of said key in one direction.

5. A. cheek plate for railway draftrigging provided with a slot, a wall of said slot having a recess therein, and a member fitting within said recess and adapted to reduce the length of said cheek plate slot.

In testimony whereof I affix my signature.

i DONALD S. BARROWS. 

